<div style="display: flex; justify-content: space-between">
  <span>田径运动会管理系统</span>
  <div style="width: 200px">
    <% if (login) { %>
    <span style="margin-right: 20px"><%=userId%></span>
    <a href="/signOut">注销</a>
    <% } %>
  </div>
</div>

